place all ingredients in a heavy bottomed saucepan. cook on low heat until it begins to bubble and thicken. watch closely and cook until it is thick and jammy. set aside to cool

crust

1 cup unsalted butter--melted

1/2 cup powdered sugar

1/2 tsp kosher salt

1 1/2 cups flour{whole wheat or all-purpose}

whisk together the flour, powdered sugar and salt. stir in butter. press into a 9"x 13" pan. bake in a 375^ oven until it just begins to brown(15-18 minutes). remove from oven and allow to cool.

brown butter filling

3 large eggs

1 1/4 cup sugar

1/2 tsp salt

grated zest of 1 lemon

juice of 1/2 lemon

1/2 cup + 2 Tbs unsalted butter

3/4 cup + 2 Tbs flour {whole wheat or all purpose}

1 teaspoon vanilla

place the butter in a saucepan and cook on low heat until it becomes brown and nutty, careful not to burn. whisk together the eggs, sugar, salt, lemon zest, lemon juice, flour and vanilla. carefully stir in the browned butter.

to assemble

spread about half of the browned butter mixture on the prepared crust. dollop about 3/4 of the jam on top. spread the remaining browned butter filling and then dollop the remaining jam. bake for about 25 to 30 minutes, until the edges just begin to turn brown. do not overbake, (allowing the filling to souffle). allow to cool before cutting into bars.